Improvement in tuck-creasers for sewing-machines



l u EPwELL.,

vTuck-(realsersfor Sewing-Machines.` N0, 145,094 Patented De. 30,4873.

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EDWARD POWELL, OE. NEW YORK, N. Y.

IMPROVEMENT IN TUCK-CREASERS FOR SEWING-MACHINES.`

Specification forming part of Letters Patent No. 146,094, dated December30, 1873; application led September 5, 1873.

vice with a marker composed of two plates,

made by bending a strip of elastic material, the upper plate having acurved projection, which presses the cloth down against themarking-edge, and the lower plate provided with a straight tongue, theoflice of which is to keep the cloth smooth while being marked, the

i two plates being guided in their operation by a post on the lowerprojecting up through a slot in the upper plate.

It has been found desirable, when fabrics are marked for tueking by asewing-machine attachment, that the cloth to be marked shall bestretched smoothly at the time the mark is made; and Vit is alsodesirable, in some instances, to mark for tueking several thicknesses orfolds of cloth at the same time with certainty and distinctness. Theseresults, it is believed, are accomplished by my tuckmarker, the subjectof this invention, as will appear in the following specification anddraw- J ings; wherein Figure lis a plan or top view of my improvedtuck-marker; Fig. 2, a side elevation of same; Fig. 3, an end elevationof same; and Fig. 4, aside elevation of :markingV device, showing themanner of producing mark.

Similar letters of reference indicate like partsin the several figures.

A is a tuck-markin g attachment for a sewingmachine. That part which isattached to the plate of the machine and the striking-bar may be of anyof the well-known forms of construction, and Ltherefore, do not claimany part of them as of `my invention 5 but my invention is confinedsolely to the actual marking device, B. This marker may be constructedfrom thin steel or any other elastic metal, bent so as to form an upperand lower plate, a and b. The upper plate, a, at or near its outereXtremity, has formed upon, and at right angles to it, a projection,cthe lower end of this projection being slightly curved, as at d. Thelower plate, b, is constructed at its inner extremity, with aprolongation or tongue, e. To the lower plate, b,'is firmly secured, atright angles to its surface, a guide-pimf, this pin passing through aslot, y, formed in the upper plate, a. (See Figs. l and 2.) The deviceabove describedis rmly secured, in any desirable manner, to thespring-bar F, this spring-bar being likewise secured to the sliding barG, the sliding bar G having a small plate, h, projecting from or nearits outer end. At right angles to the i plate or projection h, andformed with, or connected to, said plate, is raised a ledge, i, (seeFigs. l, 3, and 4,) the edge of this ledge being sharpened to form akniteedge. To the under side of tongue e a supportingpoint, o, -isaffixed, so that said tongue and theledge fi are raised, more or less,from` the surface of the face-plate of the sewing-machine, in this' wayincreasing the throw ofthe projection o.

My tuck-marking device being constructed substantially as abovedescribed, its operation is as follows: The cloth to be marked fortucking is placed under the spring-bar F and un-l der the tongue e, andthe moment the striking-` If it should be desired to mark at the sametime i several thicknesses or folds of cloth, it may be accomplishedwith 'the same facility as would be i the marking of a single thicknessof cloth;

for, as will be seen, the projection o, being provided with a curvedpoint, which workson the 1 outer side of the ledge i, itwill accommodateitself to several thicknesses of cloth, and force them over theknife-edge with the same facility as it would a single thickness,forming upon ,each thickness an equally distinct marking.

Having,` thus described my invention, what I claim as new7 and desire tosecure by Letters Patent, ism

In a tuck creasing or marking attachment for sewing machines, thespring-plates, provided With a guide-pin, f, to prevent lateralmovement, in combination With the prolongation or ton gne e andsupporting-point o.

EDWARD POWELL.

Witnesses IH. L. WATTENBERG, C. J. MILLER.

44, mm L

